Notes

• "-" indicates no rain or inadequate rainfall; "*" indicates that no measurement was taken at that time.
• According to the EPA's regulation, rainfall with pH value below 5.0 is classified as acid rain, indicated by red here.
• The Central Weather Administration applies wet deposition method in collecting samples of rainwater from 2005. Prior to 2005, bulk deposition method was used.
• The data from Keelung, Kaohsiung, Hengchun, Taitung, and Hualien stations in 1973 are use as measurement results for the special project.